Convenient bent cap support dismantling device

Abstract

The invention discloses a portable bent cap support dismantling device which comprises a main truss, an electric hoist assembly and a portable lifting lug. The main truss comprises truss supporting legs and a load-bearing cross beam, and an adjusting sliding rail is arranged on the load-bearing cross beam; the electric hoist assembly comprises an electric hoist and a sliding device, the electric hoist is slidably mounted on the bearing cross beam through the sliding device, and the mounting and fixing position of the electric hoist assembly on the bearing cross beam is adjusted through the adjusting sliding rail; the portable lifting lug is used for being fixedly connected with the bent cap support and is provided with a lifting lug, and the lifting lug is connected with the output end of the electric hoist so as to lift and hoist the bent cap support. A plurality of aspects such as slide rail adjustment, electric hoist pin shaft connection, safety rope lifting lugs and supporting cushion legs are improved and optimized; the position can be flexibly adjusted according to actual requirements, the lifting requirements of the bent cap supports of different sizes are met, the universality and applicability of integral lifting construction of the bent cap supports are improved, and the operation convenience and safety of construction operation are improved.

Description

Technical Field

[0001] This invention relates to the field of bridge pier construction technology, and in particular to a convenient device for dismantling cap beam supports. Background Technology

[0002] With social development, road and bridge engineering projects, as fundamental infrastructure projects, are an important component of urban transportation networks. Highway bridges and viaducts often utilize bridge piers for support; therefore, the construction of bridge piers is a crucial aspect of road and bridge engineering projects. In the current construction of large cantilever girder supports for bridge piers, to improve construction efficiency and reduce high-altitude work time, an integrated construction process for large cantilever girder supports has emerged. This process involves the overall lifting, lowering, dismantling, and adjustment of the ground-assembled large cantilever girder supports. Feasibly, this can be achieved by hoisting the girder supports as a whole using a lifting device installed on the pier top. In existing technologies, to accommodate the hoisting of smaller girder supports, improve construction efficiency, and save costs, simple girder support dismantling devices are often used. However, existing simple girder support dismantling devices mostly employ purely fixed connection support lifting structures, which suffer from insufficient flexibility and poor applicability. Therefore, it is necessary to further improve and optimize these devices, designing more flexible and convenient girder support dismantling devices. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a convenient device for dismantling a cap beam support, comprising a main truss, an electric hoist assembly, and convenient lifting lugs;

[0004] The main truss includes truss legs and load-bearing crossbeams, and the load-bearing crossbeams are equipped with adjusting slide rails.

[0005] The electric hoist assembly includes an electric hoist and a sliding device. The electric hoist is slidably mounted on the load-bearing crossbeam via the sliding device. The installation and fixing position of the electric hoist assembly on the load-bearing crossbeam is adjusted by the adjusting slide rail.

[0006] The convenient lifting lug is used to fix and connect to the cover beam support and has a lifting lug. The lifting lug is connected to the output end of the electric hoist to lift and suspend the cover beam support.

[0007] As a further explanation of the present invention, a connecting lug is provided on the lower side of the sliding device, and the electric hoist is connected to the sliding device by means of a pin mounted on the connecting lug, so as to increase the connection strength and reduce the overall clearance height.

[0008] Furthermore, the sliding device includes a drive mechanism that drives it to slide on the adjusting slide rail.

[0009] Furthermore, the sliding device includes a limiting mechanism that limits and fixes it to the load-bearing crossbeam.

[0010] Furthermore, the main truss is equipped with safety rope lugs, which are connected to the convenient lugs via safety ropes.

[0011] Furthermore, the full rope lug is an openable and closable lug structure, including a safety switch for controlling the opening or closing of the full rope lug.

[0012] Furthermore, the truss support leg includes a square tube support leg and a support pad leg. The square tube support leg is fixedly connected to the load-bearing crossbeam, and the support pad leg is detachably connected to the square tube support leg.

[0013] Furthermore, the square tube support leg and the support pad leg are detachably connected and fixed by a mating pin.

[0014] Furthermore, the support legs are provided with flat connecting grooves, and the support legs are connected to each other by flat connecting channel steel.

[0015] The beneficial effects of this invention are:

[0016] This invention improves and optimizes the structure of the convenient girder support dismantling device in several aspects, including the adjustable slide rail, electric hoist pin connection, safety rope lugs, and support legs. Based on the adjustable slide rail, the electric hoist assembly can be flexibly adjusted on the load-bearing beam according to actual needs, thus better adapting to the lifting requirements of girder supports of different sizes, improving the versatility and applicability of the entire device for the overall hoisting construction of girder supports. The improvements and optimizations to the electric hoist pin connection, safety rope lugs, and support legs effectively enhance the ease of operation and safety of construction work. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the convenient cap beam support dismantling device according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram illustrating the hoisting application of the convenient cap beam support dismantling device according to an embodiment of the present invention. Figure 1 ;

[0019] Figure 3 This is a schematic diagram illustrating the hoisting application of the convenient cap beam support dismantling device according to an embodiment of the present invention. Figure 2 ;

[0020] Figure 4 This is a diagram illustrating the adjustable slide rail structure according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of a convenient lifting lug structure according to an embodiment of the present invention.

[0022] Reference numerals in the attached drawings: 1. Main truss; 101. Load-bearing crossbeam; 102. Square tube support leg; 103. Support leg; 2. Portable lifting lug; 201. Lifting lug; 3. Adjustable slide rail; 4. Electric hoist; 5. Sliding device; 6. Cap beam support; 7. Drive mechanism; 8. Limiting mechanism; 9. Safety rope lifting lug; 10. Safety rope; 11. Lifting wire rope; 12. Flat connecting channel steel. Detailed Implementation

[0023] Example:

[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] As attached Figure 1-5 As shown, this embodiment of a convenient cap beam support dismantling device includes a main truss 1, an electric hoist assembly, and a convenient lifting lug 2. The main truss includes truss legs and a load-bearing crossbeam 101, and an adjusting slide rail 3 is provided on the load-bearing crossbeam. The electric hoist assembly includes an electric hoist 4 and a sliding device 5. The electric hoist is slidably installed on the load-bearing crossbeam through the sliding device, and the installation and fixing position of the electric hoist assembly on the load-bearing crossbeam is adjusted by the adjusting slide rail. The convenient lifting lug is used to be fixedly connected to the cap beam support and has a lifting lug 201. The lifting lug is connected to the output end of the electric hoist to lift and suspend the cap beam support. The convenient cap beam support dismantling device of the present invention is mainly used for the overall dismantling of cap beam support 6. In use, it is supported by truss legs installed and fixed on the cap beam. Then, the cap beam support is connected and fixed to the electric hoist with hoisting wire rope. After checking that everything is correct, the cap beam support can be remotely operated to lift and lower the entire cap beam support, which can quickly dismantle the cap beam support and improve construction efficiency. An adjustable slide rail is specially set on the load-bearing crossbeam. The electric hoist assembly can be flexibly adjusted on the load-bearing crossbeam according to actual needs, so as to better adapt to the lifting and lowering construction needs of cap beam supports of different sizes, thereby improving the versatility and applicability of the entire device.

[0027] For details, please see the appendix. Figure 1As shown, a connecting lug is provided on the lower side of the sliding device. The electric hoist is mounted on the connecting lug via a pin and connected to the sliding device to increase the connection strength and reduce the overall headroom. This connection method not only ensures a firm connection between the electric hoist and the sliding device, but also has a better effect than conventional wire rope connections. It can prevent loosening or detachment during hoisting and effectively reduce the overall headroom of the entire device. Reducing the headroom is very important in situations with limited construction space, as it allows the entire device to better adapt to different construction environments, avoiding malfunctions due to height limitations and improving the device's practicality.

[0028] For a preferred embodiment, see Appendix Figure 1 As shown in the figure, the sliding device in this embodiment includes a drive mechanism 7 that drives it to slide on the adjusting slide rail. The function of the drive mechanism is to drive the sliding device to slide on the adjusting slide rail, which can reduce the difficulty of adjusting the track gauge of the electric hoist assembly and facilitate the adjustment of the track gauge; it can be implemented by, for example, a hydraulic valve / gear drive structure, so the position adjustment of the electric hoist assembly no longer requires manual movement, but can be completed automatically by the drive mechanism. This design greatly improves work efficiency, reduces the tediousness and labor intensity of manual operation, reduces the high-altitude work time of construction personnel, and also improves the accuracy and stability of position adjustment, enabling more precise movement of the electric hoist assembly to the required position, thereby better completing the lifting and hoisting task of the cover beam support. As shown in the figure, the adjusting slide rail in this embodiment is preferably set on the upper side of the load-bearing crossbeam, and the drive mechanism can be set on the side of the load-bearing crossbeam.

[0029] For a preferred embodiment, see Appendix Figure 4 As shown, the sliding device in this embodiment includes a limiting mechanism 8 that limits and fixes it to the load-bearing crossbeam. The function of the limiting mechanism is to limit and fix it to the load-bearing crossbeam. During the lifting and lowering of the cap beam support, the electric hoist assembly needs to maintain a stable position on the load-bearing crossbeam to ensure the smoothness and safety of the hoisting process. As described above, based on the dimensions of the cap beam support, after adaptively adjusting the two sets of electric hoist assemblies on the load-bearing crossbeam, they are fixed by the limiting mechanism to prevent the sliding device from moving unexpectedly due to external forces or other factors during hoisting. This ensures the reliability and stability of the entire device during operation, avoids hoisting accidents caused by unstable sliding device positions, and improves the overall safety of the device. In practical applications, the limiting mechanism can adopt the bolt structure shown in the attached diagram. After the electric hoist assembly is adjusted to the correct position, it is fixed by manual tightening.

[0030] To further enhance the safety of the device, as a preferred embodiment, see the appendix. Figure 1As shown in Figure 3, in this embodiment, the main truss is equipped with a safety rope lifting lug 9, which is connected to the convenient lifting lug via a safety rope 10. Before the lifting and hoisting of the cap beam support, the safety rope lifting lug on the main truss is connected to the convenient lifting lug via a safety rope. In this way, even if unexpected situations occur during the lifting and commissioning of the cap beam support, such as a malfunction of the electric hoist assembly, a breakage of the hoisting wire rope 11, or a loosening of the hoisting lug, the safety rope can still provide auxiliary support to prevent the cap beam support from suddenly falling, thereby ensuring the safety of construction personnel and equipment.

[0031] In the structure shown in the attached drawings, the full rope lifting lug in this embodiment is an integrated structure, meaning that the full rope lifting lug and the load-bearing crossbeam are integrated. The installation and removal of the safety rope require manual operation. In other embodiments (not shown in the attached drawings), the full rope lifting lug adopts an openable / closable structure, including a safety switch to control the opening or closing of the full rope lifting lug. This safety switch is preferably a remotely controllable electric switch. Thus, after manually installing the safety rope and confirming the safe and normal hoisting of the cap beam support, there is no need for manual untying of the safety rope. This reduces the time workers spend at height, improving construction safety. Furthermore, remote button operation allows for safety rope release and unlocking, further reducing manual operation time and improving construction efficiency.

[0032] For a preferred embodiment, see Appendix Figure 1 As shown, the truss legs in this embodiment include square tube legs 102 and support legs 103. The square tube legs are fixedly connected to the load-bearing crossbeam, and the support legs are detachably connected to the square tube legs. This connection method allows for the installation of support legs according to actual conditions, avoiding the unevenness and instability caused by temporarily adding steel plates. Furthermore, the detachable connection between the support legs and the square tube legs makes the entire device more convenient to transport and store. The support legs can be disassembled, reducing the device's size and saving space. In actual use, the support legs are then installed onto the square tube legs, quickly assembling into a complete main truss, improving the device's flexibility and portability.

[0033] For details, please see the appendix. Figure 1 As shown, in this embodiment, the square tube support leg and the support pad leg are detachably connected and fixed by a butt pin. The butt pin is a simple and effective connection method that ensures a firm connection between the square tube support leg and the support pad leg while facilitating disassembly and installation. This connection method not only ensures the stability of the entire device during use but also makes disassembly and assembly very convenient and quick, greatly improving the efficiency of the device and reducing construction preparation time and labor intensity.

[0034] For a preferred embodiment, see Appendix Figure 1As shown, in this embodiment, the support legs are provided with horizontal connecting slots, and the support legs are connected by horizontal connecting channel steel 12. This horizontal connecting channel steel allows the support legs to be connected together, further enhancing the stability and integrity of the entire main truss. It enables the support legs to support each other, forming a more stable support structure. This connection method effectively improves the stability of the device under heavy loads, prevents deformation or damage caused by uneven local stress, thereby extending the service life of the device and ensuring the safe and reliable lifting operation of the cap beam support.

[0035] The above description only illustrates preferred embodiments of the present invention and should not be construed as limiting the scope of the claims. The present invention is not limited to the above embodiments, and variations in its specific structure are permitted. In short, all variations made within the scope of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A convenient device for dismantling a cap beam support, characterized in that: Includes the main truss, electric hoist assembly, and portable lifting lugs; The main truss includes truss legs and load-bearing crossbeams, and the load-bearing crossbeams are equipped with adjusting slide rails. The electric hoist assembly includes an electric hoist and a sliding device. The electric hoist is slidably mounted on the load-bearing crossbeam via the sliding device. The installation and fixing position of the electric hoist assembly on the load-bearing crossbeam is adjusted by the adjusting slide rail. The convenient lifting lug is used to fix and connect to the cover beam support and has a lifting lug. The lifting lug is connected to the output end of the electric hoist to lift and suspend the cover beam support.

2. The convenient cap beam support dismantling device according to claim 1, characterized in that: A connecting lug is provided on the lower side of the sliding device. The electric hoist is mounted on the connecting lug via a pin and connected to the sliding device to increase the connection strength and reduce the overall clearance height.

3. The convenient cap beam support dismantling device according to claim 1, characterized in that: The sliding device includes a drive mechanism that drives it to slide on the adjusting slide rail.

4. The convenient cap beam support dismantling device according to claim 1, characterized in that: The sliding device includes a limiting mechanism that limits and fixes it to the load-bearing crossbeam.

5. The convenient cap beam support dismantling device according to claim 1, characterized in that: The main truss is equipped with safety rope lugs, which are connected to the convenient lugs via safety ropes.

6. The convenient cap beam support dismantling device according to claim 1, characterized in that: The full rope lifting lug is an openable and closable lifting lug structure, including a safety switch for controlling the opening or closing of the full rope lifting lug.

7. The convenient cap beam support dismantling device according to claim 1, characterized in that: The truss support leg includes a square tube support leg and a support pad leg. The square tube support leg is fixedly connected to the load-bearing crossbeam, and the support pad leg is detachably connected to the square tube support leg.

8. The convenient cap beam support dismantling device according to claim 7, characterized in that: The square tube support leg and the support pad leg are detachably connected and fixed by a butt pin.

9. The convenient cap beam support dismantling device according to claim 7, characterized in that: The support legs are provided with flat connecting grooves, and the support legs are connected to each other by flat connecting channel steel.

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